public class Test {
    public static void main(String[] args) {
        MyLinkedList myLinkedList=new MyLinkedList();
        myLinkedList.addFirst(1);
        myLinkedList.addFirst(2);
        myLinkedList.addFirst(3);
        myLinkedList.addFirst(4);
        myLinkedList.addLast(44);
        myLinkedList.addIndex(2,99);
        System.out.println("==========");
        boolean bl=myLinkedList.contains(44);
        System.out.println(bl);
        myLinkedList.display();
    }
}
